Finding the Fourth Proportional to 19,634.86, 29,439.15 and 7,153.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,634.86 : 29,439.15 = 7,153.31 : x
2. Step 2: Convert to fraction form
   19,634.86/29,439.15 = 7,153.31/x
3. Step 3: Cross multiply
   19,634.86x = 29,439.15 × 7,153.31
4. Step 4: Simplify right side
   19,634.86x = 210,587,412.86
5. Step 5: Solve for x
   x = 210,587,412.86/19,634.86
6. Step 6: Final answer
   x = 10,725.18